Sagger tool capable of reducing powder overflow

Abstract

The utility model discloses a sagger tool for reducing powder overflow, which comprises a sagger body, the upper end of each side wall of the sagger body is provided with an exhaust port, each exhaust port is internally provided with a graphite plug-in unit, the graphite plug-in unit is U-shaped, the upper surface of the graphite plug-in unit is provided with a Tesla valve structure, and the Tesla valve structure is arranged on the lower surface of the sagger body. A clamping groove matched with the exhaust port is formed in the outer wall face of the graphite inserting piece, the clamping groove of the graphite inserting piece is connected to the corresponding exhaust port in a clamped mode, and a valve inlet of the Tesla valve structure on the graphite inserting piece faces the interior of the sagger body. According to the sagger tool capable of reducing powder overflow, the special graphite plug-in with the Tesla valve structure is additionally arranged at the opening of the sagger wall, so that material loss is reduced, and output is increased; powder entering a tail gas pipeline is reduced, so that sintering production is more stable, fan failure time is shortened, pipeline cleaning frequency is reduced, maintenance period is prolonged, and production cost is reduced.

Description

Technical Field

[0001] The utility model relates to a sagger tooling for reducing powder overflow. Background Art

[0002] During the production and sintering process of aqueous sodium-ion battery negative electrode powder material, gas precipitation will occur, and the generated gas will be discharged through the opening (exhaust port) 11' on the wall of the sagger 1' and enter the exhaust gas pipeline; during this process, a small amount of powder will enter the exhaust gas pipeline with the gas, and long-term accumulation will cause blockage of the pipeline and the fan, affecting product quality and normal production operation, and causing great pressure on equipment maintenance. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a sagger tooling for reducing powder overflow, and to install a special graphite plug-in with a Tesla valve structure at the opening of the sagger wall to reduce material loss and increase output; reduce the entry of powder into the exhaust pipe, make the sintering production more stable, reduce the fan failure time, reduce the frequency of pipeline cleaning, extend the maintenance cycle, and reduce production costs.

[0004] The technical solution to achieve the above-mentioned purpose is: a sagger tooling for reducing powder overflow, comprising a sagger body, wherein an exhaust port is opened at the upper end of each side wall of the sagger body, and a graphite plug is arranged in each exhaust port, wherein the graphite plug is U-shaped, and a Tesla valve structure is arranged on the upper surface of the graphite plug, and the valve inlet of the Tesla valve structure on the graphite plug faces the inside of the sagger body.

[0005] In the above-mentioned sagger tooling for reducing powder overflow, a slot matching the exhaust port is provided on the outer wall surface of the graphite plug-in, and the slot of the graphite plug-in is snap-connected to the corresponding exhaust port.

[0006] In the above-mentioned sagger tooling for reducing powder overflow, the depth of the groove of the graphite insert is 1-3 mm.

[0007] In the above-mentioned sagger tooling for reducing powder overflow, the exhaust port is U-shaped and the clamping groove is U-shaped.

[0008] In the above-mentioned sagger tooling for reducing powder overflow, the distance between the clamping slot and the valve inlet side of the Tesla valve structure is greater than the distance between the clamping slot and the valve outlet side of the Tesla valve structure.

[0009] In the above-mentioned sagger tooling for reducing powder overflow, the length of the graphite insert is 4-8 cm.

[0010] The utility model discloses a sagger tooling for reducing powder overflow, based on the original sagger, additionally installs a special graphite plug-in with a Tesla valve structure at the opening of the sagger wall. Since the powder density is greater than the precipitated water vapor and ammonia, it is in the lower part of the exhaust gas flow. When the airflow passes through the graphite plug-in, the discharge of water vapor and ammonia in the upper part of the airflow is not affected. The lower part of the airflow contains more powder. When passing through the graphite plug-in, the powder will gradually settle in the graphite plug-in under the action of the Tesla valve structure, thereby reducing the amount of powder entering the exhaust pipe, achieving the purpose of reducing equipment failures and reducing material losses. Moreover, there is no need to improve the existing sagger and sintering equipment, and the process improvement cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural diagram of a sagger in the prior art;

[0012] Figure 2 It is a front view of a sagger in the prior art;

[0013] Figure 3 It is a three-dimensional structural diagram of the sagger tooling for reducing powder overflow of the utility model;

[0014] Figure 4 This is a front view of the sagger tooling for reducing powder overflow of the utility model;

[0015] Figure 5 It is a top view of the sagger tooling for reducing powder overflow of the utility model;

[0016] Figure 6 It is a three-dimensional structural diagram of the graphite plug-in;

[0017] Figure 7 is a top view of the graphite insert;

[0018] Figure 8 It is a bottom view of the graphite insert;

[0019] Fig. 9 This is the main view of the graphite plug-in;

[0020] Fig.10 for Fig. 9 BB cross-sectional view. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the utility model, the specific implementation method thereof is described in detail below in conjunction with the accompanying drawings:

[0022] See also Figures 2 to 10The best embodiment of the utility model is a sagger tooling for reducing powder overflow, comprising a sagger body 1, an exhaust port is provided at the upper end of each side wall of the sagger body 1, a graphite plug-in 2 is arranged in each exhaust port, the graphite plug-in 2 is U-shaped, a Tesla valve structure 21 is arranged on the upper surface of the graphite plug-in 2, a card groove 22 adapted to the exhaust port is provided on the outer wall surface of the graphite plug-in 2, the card groove 22 of the graphite plug-in is clamped in the corresponding exhaust port, and the valve inlet 23 of the Tesla valve structure 21 on the graphite plug-in 2 faces the inside of the sagger body 1.

[0023] The depth of the card slot 22 of the graphite plug 2 is 2 mm. The exhaust port is U-shaped, and the card slot 22 is also U-shaped. The length of the graphite plug is 4-8 cm, and the distance a between the card slot 22 on the graphite plug and the valve inlet 23 side of the Tesla valve structure 2 is greater than the distance b between the card slot 22 and the valve outlet 24 side of the Tesla valve structure.

[0024] The utility model reduces the powder overflow of the sagger tooling, the corresponding size, structure mold is made, the graphite plug 2 matching the exhaust port of the sagger body is pressed out, after the powder is loaded into the sagger, the graphite plug 2 is installed at the exhaust port of the sagger; the exhaust port size of the sagger is a fixed value, the size of the slot 22 matches the exhaust port size of the sagger, the depth is about 2mm, and the valve inlet 23 of the Tesla valve structure (the longer side of the slot 22) is facing the inside of the sagger during installation; during production, the powder is first loaded into the sagger, and then the graphite plugs 2 in four directions are installed, and then the sintering process is entered. During sintering, since the powder density is greater than the precipitated water vapor and ammonia, it is at the bottom in the exhaust gas flow. When the airflow passes through the graphite plug 2, the discharge of water vapor and ammonia in the upper part of the airflow is not affected, and the lower part of the airflow contains more powder. When passing through the graphite plug 2, under the action of the Tesla valve structure, the powder will gradually settle in the graphite plug 2, thereby reducing the amount of powder entering the exhaust pipe, achieving the purpose of reducing equipment failure and reducing material loss.

[0025] To sum up, the utility model of the sagger tooling for reducing powder overflow is provided with a special graphite plug-in with a Tesla valve structure at the opening of the sagger wall, which reduces material loss and increases output; reduces the entry of powder into the exhaust pipe, makes the sintering production more stable, reduces the fan failure time, reduces the frequency of pipeline cleaning, extends the maintenance cycle, and reduces the production cost.

[0026] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A sagger tool for reducing powder overflow, comprising a sagger body, characterized in that: An exhaust port is provided at the upper end of each side wall of the sagger body, and a graphite plug is arranged in each exhaust port. The graphite plug is U-shaped, and a Tesla valve structure is arranged on the upper surface of the graphite plug, and the valve inlet of the Tesla valve structure on the graphite plug faces the inside of the sagger body.

2. A sagger tool for reducing powder overflow according to claim 1, characterized in that: The outer wall surface of the graphite plug-in is provided with a clamping groove matched with the exhaust port, and the clamping groove of the graphite plug-in is clamped in the corresponding exhaust port.

3. A sagger tool for reducing powder overflow according to claim 2, characterized in that: The depth of the groove of the graphite plug-in is 1-3 mm.

4. A sagger tool for reducing powder overflow according to claim 2, characterized in that: The exhaust port is U-shaped, and the card slot is U-shaped.

5. A sagger tool for reducing powder overflow according to claim 2, characterized in that: The distance between the clamping slot and the valve inlet side of the Tesla valve structure is greater than the distance between the clamping slot and the valve outlet side of the Tesla valve structure.

6. The sagger tooling for reducing powder overflow according to claim 1, characterized in that: The length of the graphite insert is 4-8 cm.

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